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首页> 外文期刊>Applied Sciences >Determination of Boron, Phosphorus, and Molybdenum Content in Biosludge Samples by Microwave Plasma Atomic Emission Spectrometry (MP-AES)
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Determination of Boron, Phosphorus, and Molybdenum Content in Biosludge Samples by Microwave Plasma Atomic Emission Spectrometry (MP-AES)

机译：微波等离子体原子发射光谱法测定生物滤泡样品中的硼，磷和钼含量（MP-AES）

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摘要

A novel analytical method for accurate determination of boron (B), phosphorous (P), and molybdenum (Mo) content in biosludge samples based on a relatively recent analytical technique, microwave plasma atomic emission spectrometry (MP-AES), is developed in the present work. Microwave assisted acid digestion method is utilized to extract B, P, and Mo from biosludge. To demonstrate the reliability and accuracy of the present MP-AES method, its results are compared with those obtained using two well-established techniques, i.e., flame atomic absorption spectrometry (FAAS) and inductively coupled plasma optical emission spectrometry (ICP-OES). Matrix variation in the MP-AES technique is found to result in minimal changes. Precision and accuracy of the developed method are demonstrated using replicate analyses of certified sewage sludge reference material, EnviroMAT (BE-1). The limit of quantification and detection of B, P, and Mo in the extracts are determined; the linear regression coefficient was greater than 0.998 for all the three techniques. Analytical wavelengths are selected according to the sensitivity and interference effects. The results obtained in this work demonstrate the potential of MP-AES technique for the determination of B, P, and Mo content in biosludge, which achieved lower detection limits, higher accuracy, and better reproducibility as compared to other techniques.
机译：基于相对近期的分析技术，微波等离子体原子发射光谱（MP-AES）的生物裂解样品中硼（B），磷（P）和钼（MO）含量的精确测定硼（B），磷（P）和钼（MO）含量的新的分析方法。现在的工作。微波辅助酸消化方法用于从生物裂解中提取B，P和MO。为了证明当前MP-AES方法的可靠性和准确性，将其结果与使用两种良好的技术获得的结果进行比较，即火焰原子吸收光谱（FAAS）和电感耦合等离子体光发射光谱法（ICP-OES）。发现MP-AES技术中的矩阵变化导致最小的变化。使用经认证的污水污泥参考材料，Enviromat（BE-1）进行了分析来证明开发方法的精度和准确性。确定提取物中的B，P和Mo的定量极限;对于所有三种技术，线性回归系数大于0.998。根据灵敏度和干扰效应选择分析波长。在该工作中获得的结果证明了MP-AES技术用于测定B，P和Mo含量的BiSludge，其与其他技术相比，实现了较低的检测限，更高的精度和更好的再现性。

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